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Citation:
ZHANG Lina, LIU Haiqing, ZHENG Lianshuang, ZHANG Jiayao, DU Yumin, LIU Weili. BIODEGRADATION OF REGENERATED CELLULOSE FILMS BY FUNGI[J]. Chinese Journal of Polymer Science,
;1996, 14(4): 338-345.
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The biodegradability of Aspergillus niger (A. niger), Mucor (M-305) and Trichoderma(T-311) strains on regenerated cellulose films in media was investigated. The results showedthat T-311 strain isolated from soil adhered on the cellulose film fragments has strongerdegradation effect on the cellulose film than A. niger strain. The weights, molecular weightsand tensile strengths of the cellulose films in both shake culture and solid media decreasedwith incubation time, accompanied by producing CO2 and saccharides.HPLC,IR and released CO2 analysis indicated that the biodegradation products of the regenerated cellulose films mainly contain oligosacharides,cellobiose,glucose,arabinose,erythrose,glycerose,glycerol,ethanal,formaldehyde and organic acid,the end products were CO2 and water.After a month,the films were completely decomposed by fungi in the media at 30℃.
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